For about a year now I've played Titleist 714 MB's, and in my mind it is the perfect iron. After using eye 2, TM 300 forged CB's and TM TP MC's I find I can focus better looking down at a small blade with little to no offset and my swing is better. The results are better too.
The funny thing is I was apprehensive at first about playing real blades since every review says don't even try unless you play to under 2 or 3. Well I'm a very long way away from that, and the 714 MB's have improved my iron play significantly.